點解一句句子可以有2種tense???
eg: there are portable electronic books,but no one seems to have bought them.
前面係present tense ...但係係句子to 之後出現present perfect tense?
又好似呢句咁.....無端端又轉左個tense??
Music is extremely popular on the internet ,but record company haven't found a way to make people pay for the product.
grammar 問題
2009-08-24 9:58 pm
回答 (2)
2009-08-25 1:01 am
✔ 最佳答案
一句句子可以有2種 tense because there is no rules that it cannot. A sentence is made up of one or more clauses. The clauses in a sentence can be in different tenses. There are two clauses in the sentence "There are portable electronic books,but no one seems to have bought them." Both clauses are in present tense.
2009-08-24 10:19 pm
前者用present tense 因為要表達一些恆久的, 慣常的, 自然的事實及現象!!!e.g太陽從東面昇起, 一定是用present tense
後者用present perfect tense因為要表達有些現象現在此刻, 預計會維持一段時間的, 就要用present perfect tense
希望幫到你啦
後者用present perfect tense因為要表達有些現象現在此刻, 預計會維持一段時間的, 就要用present perfect tense
希望幫到你啦
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